Characterization of fine sediments and soils erodibility
PELOSI
Type de document
RAPPORT DE STAGE
Langue
anglais
Auteur
PELOSI
Résumé / Abstract
Soil erosion is a naturally occurring process that affects all landforms, in fact erosion processes are the major cause of failures in hydraulic earthworks such as levees and earth dams. They affect as well many structures including transport infrastructure embankments or foundations of bridge piers. Erosion phenomena are complex processes depending on multiple parameters. Due to the importance of this topic, it is therefore essential to characterize them through direct measurements that are why a large number of techniques have been developed in order to find solutions for trying to control it. In this study a new methodology along with a new device have been developed and tested in order to understand the erodibility of sediments from fine soils.
The first part of this study was devoted to design and construction of the device, the first test was carried out with Fontainebleau Sand, a homogeneous material. A second session of tests, were executed on a mixed material constitute by Kaolinite Armoricaine and Fontainebleau Sand, to try to emulate a more real environment. The results obtained in this research were positive since they were in accordance with results gotten from other known methods that are already proved as efficient. Indeed, the execution of different tests led to discuss the influence of several parameters and characterize the behavior of soils in various aspects of erosion processes.
